<template>
  <div class="login-container">
    <el-image class="banner" :src="banner" />
    <el-form v-if="!isRegister" ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" autocomplete="on" label-position="left">

      <div class="title-container">
        <h3 class="title">用户登录</h3>
      </div>
      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="username"
          v-model="loginForm.username"
          placeholder="Username"
          name="username"
          type="text"
          tabindex="1"
          autocomplete="on"
        />
      </el-form-item>

      <el-tooltip v-model="capsTooltip1" content="Caps lock is On" placement="right" manual>
        <el-form-item prop="password">
          <span class="svg-container">
            <svg-icon icon-class="password" />
          </span>
          <el-input
            :key="passwordType1"
            ref="password"
            v-model="loginForm.password"
            :type="passwordType1"
            placeholder="Password"
            name="password"
            tabindex="2"
            autocomplete="on"
            @keyup.native="checkCapslock"
            @blur="capsTooltip1 = false"
            @keyup.enter.native="handleLogin()"
          />
          <span class="show-pwd" @click="showPwd(1)">
            <svg-icon :icon-class="passwordType1 === 'password' ? 'eye' : 'eye-open'" />
          </span>
        </el-form-item>
      </el-tooltip>

      <div class="button-bar">
        <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">登录</el-button>
        <el-button :loading="loading" type="warning" style="width:100%;margin-bottom:30px;" @click="isRegister = true">注册</el-button>
      </div>
    </el-form>

    <el-form v-if="isRegister" ref="registerForm" :model="registerForm" :rules="registerRules" class="login-form" autocomplete="on">

      <div class="title-container">
        <h3 class="title">{{ isCom ? '企业':'' }}用户注册</h3>
      </div>
      <el-form-item class="el-form-item register" prop="username">
        <div style="display: flex;flex-direction: row;flex-wrap: nowrap">
          <span class="svg-container">
            <svg-icon icon-class="user" />
            <span style="margin-left: 10px">用户名:</span>
          </span>
          <el-input
            ref="username"
            v-model="registerForm.username"
            placeholder="Username"
            name="username"
            type="text"
            autocomplete="on"
          />
        </div>
      </el-form-item>

      <el-tooltip v-model="capsTooltip2" content="Caps lock is On" placement="right" manual>
        <el-form-item prop="password1" class="el-form-item register">
          <div style="display: flex;flex-direction: row;flex-wrap: nowrap">
            <span class="svg-container">
              <svg-icon icon-class="password" />
              <span style="margin-left: 10px">密码:</span>
            </span>
            <el-input
              :key="passwordType2"
              ref="password"
              v-model="registerForm.password1"
              :type="passwordType2"
              placeholder="Password"
              name="password"
              tabindex="2"
              autocomplete="on"
              @keyup.native="checkCapslock"
              @blur="capsTooltip2 = false"
            />
            <span class="show-pwd" @click="showPwd(2)">
              <svg-icon :icon-class="passwordType2 === 'password' ? 'eye' : 'eye-open'" />
            </span>
          </div>
        </el-form-item>
      </el-tooltip>
      <el-tooltip v-model="capsTooltip3" content="Caps lock is On" placement="right" manual>
        <el-form-item prop="password2" class="el-form-item register">
          <div style="display: flex;flex-direction: row;flex-wrap: nowrap">
            <span class="svg-container">
              <svg-icon icon-class="password" />
              <span style="margin-left: 10px">确认密码:</span>
            </span>
            <el-input
              :key="passwordType3"
              ref="password"
              v-model="registerForm.password2"
              :type="passwordType3"
              placeholder="Password"
              name="password"
              tabindex="2"
              autocomplete="on"
              @keyup.native="checkCapslock"
              @blur="capsTooltip3 = false"
              @keyup.enter.native="handleLogin"
            />
            <span class="show-pwd" @click="showPwd(3)">
              <svg-icon :icon-class="passwordType3 === 'password' ? 'eye' : 'eye-open'" />
            </span>
          </div>
        </el-form-item>
      </el-tooltip>

      <div class="button-bar">
        <el-button v-if="!isRegister" :loading="loading" type="primary" style="width:100%;" @click.native.prevent="handleLogin">登录</el-button>
        <el-button v-if="isRegister" :loading="loading" type="info" style="width:100%;" @click="isRegister = false">返回</el-button>
        <el-button :loading="loading" type="warning" style="width:100%;" @click="toRegister">注册</el-button>
      </div>
      <div v-if="!isCom" class="link text-primary" @click="isCom = true">我是企业用户</div>
      <div v-else class="link text-primary" @click="isCom = false">我是普通用户</div>
    </el-form>

    <el-dialog title="Or connect with" :visible.sync="showDialog">
      Can not be simulated on local, so please combine you own business simulation! ! !
      <br>
      <br>
      <br>
      <social-sign />
    </el-dialog>
  </div>
</template>

<script>
import { validUsername } from '@/utils/validate'
import { checkUsername, register } from '@/api/user'
import SocialSign from './components/SocialSignin'
import Banner from '@/assets/banner.png'
export default {
  name: 'Login',
  components: { SocialSign },
  data() {
    const validateUsername = (rule, value, callback) => {
      if (value.length <= 0) {
        callback(new Error('用户名不能为空'))
      } else {
        checkUsername(value).then(
          res => {
            if (res.data) {
              callback()
            } else {
              callback(new Error('用户名不存在'))
            }
          }
        )
      }
    }
    const validateRegisterUserName = (rule, value, callback) => {
      if (value.length <= 0) {
        callback(new Error('用户名不能为空'))
      } else {
        checkUsername(value).then(
          res => {
            if (res.data) {
              callback(new Error('用户名已存在'))
            } else {
              callback()
            }
          }
        )
      }
    }
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('密码长度要大于等于6'))
      } else {
        callback()
      }
    }
    const validatePassword2 = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('密码长度要大于等于6'))
      } else if (value !== this.registerForm.password1) {
        callback(new Error('两次密码要相同'))
      } else {
        callback()
      }
    }
    return {
      banner: Banner + '?' + +new Date(),
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      loginRules: {
        username: [{ required: true, trigger: 'blur', validator: validateUsername }],
        password: [{ required: true, trigger: 'blur', validator: validatePassword }]
      },
      registerRules: {
        username: [{ required: true, trigger: 'blur', validator: validateRegisterUserName }],
        password1: [{ required: true, trigger: 'blur', validator: validatePassword }],
        password2: [{ required: true, trigger: 'blur', validator: validatePassword2 }]
      },
      registerForm: {
        username: '',
        password1: '',
        password2: ''
      },
      passwordType1: 'password',
      capsTooltip1: false,
      passwordType2: 'password',
      capsTooltip2: false,
      passwordType3: 'password',
      capsTooltip3: false,
      loading: false,
      showDialog: false,
      redirect: undefined,
      otherQuery: {},
      isRegister: false,
      isCom: false
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        const query = route.query
        if (query) {
          this.redirect = query.redirect
          this.otherQuery = this.getOtherQuery(query)
        }
      },
      immediate: true
    }
  },
  created() {
    // window.addEventListener('storage', this.afterQRScan)
  },
  mounted() {
    if (this.loginForm.username === '') {
      this.$refs.username.focus()
    } else if (this.loginForm.password === '') {
      this.$refs.password.focus()
    }
  },
  destroyed() {
    // window.removeEventListener('storage', this.afterQRScan)
  },
  methods: {
    checkCapslock(e) {
      const { key } = e
      this.capsTooltip = key && key.length === 1 && (key >= 'A' && key <= 'Z')
    },
    toRegister() {
      this.$refs.registerForm.validate(
        valid => {
          if (valid) {
            const form = {
              username: this.registerForm.username,
              password: this.registerForm.password1,
              isCom: this.isCom
            }
            register(form).then(
              res => {
                if (res.status === 200) {
                  this.isRegister = false
                  this.$message({
                    message: '注册成功',
                    duration: 2000
                  })
                }
              }
            )
          }
        }
      )
    },
    showPwd(index) {
      if (index === 1) {
        if (this.passwordType1 === 'password') {
          this.passwordType1 = ''
        } else {
          this.passwordType1 = 'password'
        }
      } else if (index === 2) {
        if (this.passwordType2 === 'password') {
          this.passwordType2 = ''
        } else {
          this.passwordType2 = 'password'
        }
      } else if (index === 3) {
        if (this.passwordType3 === 'password') {
          this.passwordType3 = ''
        } else {
          this.passwordType3 = 'password'
        }
      }
      // this.$nextTick(() => {
      //   this.$refs.password.focus()
      // })
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.$store.dispatch('user/login', this.loginForm)
            .then(() => {
              this.$router.push({ path: this.redirect || '/', query: this.otherQuery })
              this.loading = false
            })
            .catch(() => {
              this.loading = false
            })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },
    getOtherQuery(query) {
      return Object.keys(query).reduce((acc, cur) => {
        if (cur !== 'redirect') {
          acc[cur] = query[cur]
        }
        return acc
      }, {})
    }
    // afterQRScan() {
    //   if (e.key === 'x-admin-oauth-code') {
    //     const code = getQueryObject(e.newValue)
    //     const codeMap = {
    //       wechat: 'code',
    //       tencent: 'code'
    //     }
    //     const type = codeMap[this.auth_type]
    //     const codeName = code[type]
    //     if (codeName) {
    //       this.$store.dispatch('LoginByThirdparty', codeName).then(() => {
    //         this.$router.push({ path: this.redirect || '/' })
    //       })
    //     } else {
    //       alert('第三方登录失败')
    //     }
    //   }
    // }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #51bdcf;
$light_gray:#fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .banner{
    width: 50%;
  }
  display: flex;
  flex-direction: row;
  padding: 10%;
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }

  .thirdparty-button {
    position: absolute;
    right: 0;
    bottom: 6px;
  }

  @media only screen and (max-width: 470px) {
    .thirdparty-button {
      display: none;
    }
  }
  .button-bar{
    display: flex;
    flex-direction: row;
  }
  .el-form-item{

  }
  .form-item-label{
      display: flex;
      flex-direction: row;
  }
  //el-form-item {
  //  display: flex;
  //  flex-direction: row;
  //  justify-content: center;
  //  align-items: center;
  //}
  //el-form-item > label {
  //  display: flex;
  //  flex-direction: row;
  //  justify-content: center;
  //  align-items: center;
  //}
}
.register{
  .svg-container{
    width: 130px;
  }
  el-input{
    width: calc(100% - 130px);
  }
}
.link{
  margin: 20px auto 0;
  cursor: pointer;
  text-align: center;
  width: 100px;
  border-bottom: 1px solid #0d7251;
}
</style>
